19.
NH3 -> NO2->NO3 this process is known as
Answer : D. Nitrification
20.
The water absorbed by the plant move through
Answer : C. xylem tissues
21.
Half leaf experiment proves the essentiality of
Answer : B. CO2
22.
The broad leaves of tall trees absorb
Answer : C. Deposits of dust
23.
Plants breathe through tiny pores in the leaves
Answer : C. stomata
24.
Which is defined as a biochemical process consisting of oxidation and degradation of food with the release of energy.
Answer : A. Respiration
